Measurement-computing USB-1608GX-2AO-OEM Manual do Utilizador descarregar pdf (Página 19)

USB-1608GX-2AO-OEM User's Guide Specifications

Analog output

Table 5. Analog output specifications

Parameter Condition Specification

Number of channels 2

Resolution 16 bits

Output ranges Calibrated ±10 V

Output transient Host computer is reset, powered on, suspended,

or a reset command is issued to the device

Duration: 500 µs

Amplitude: 2 V p-p

Powered off Duration: 10 ms

Amplitude: 7 V peak

Differential

non-linearity

±0.25 LSB typ

±1 LSB max

Output current AOUTx pins ±3.5 mA max

Output short-circuit

protection

AOUTx connected to AGND Unlimited duration

Output coupling DC

Power on and

reset state

DACs cleared to zero-scale: 0 V, ±50 mV

Output noise 30 µVrms

Trigger source TRIG (see External trigger on page 20)

Sample clock source Internal D/A clock or external D/A clock

(AOCKI pin)

Output update rate 500 kHz / (number of channels in scan)

Settling time To rated accuracy, 10 V step 40 µs

Slew rate 9 V/µs

Throughput Software paced 33 to 4000 S/s typ, system-dependent

Hardware paced 500 kS/s max, system-dependent

Note 1: Leave unused AOUTx output channels disconnected.

Note 2: AOUTx defaults to 0 V whenever the host computer is reset, powered on, suspended, or a reset

command is issued to the device.

Table 6. Calibrated absolute accuracy specifications

Range Absolute accuracy (±LSB)

±10 V 16.0

Table 7. Calibrated absolute accuracy components specifications

Range % of reading Offset

(±mV)

Offset tempco

(µV/°C)

Gain tempco

(ppm of range/°C)

±10 V ±0.0183 1.831 12.7 13

Table 8. Relative accuracy specifications (±LSB)

Range Relative accuracy (INL)

±10 V 4.0 typ

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 25 26

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